Hi Delta Water Heaters, 992C-2342C

Raypak's family of Hi Delta® water heaters feature up to 85% efficiency, 105ºF minimum inlet water temperature, and a status display and on-board diagnostic center with history in English, not in codes.

Hi Delta Water Heaters, 992C-2342C

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Model Number Full Input in
 Flue Dia.
# of Stages
WH8-992C and WH8-992CD 990,000  10" 3
WH9-1262C and WH9-1262CD 1,260,000  12" 4
WH9-1532C and WH9-1532CD 1,530,000  12" 4
WH9-1802C and WH9-1802CD 1,800,000  14" 4
WH9-2002C and WH9-2002CD 1,999,000  14" 4
WH9-2072C and WH9-2072CD 2,070,000  14" 4
WH9-2342C and WH9-2342CD 2,340,000  16" 4


  • Up to 85% efficiency
  • Multiple vertical venting and sidewall venting options. No extractor required for sidewall applications up to 70ft on room air.
  • All models indoor/outdoor certified
  • Patented burner “security blanket” enhances staged combustion, minimizes installation/start-up issues, and protects burners from metal fatigue.
  • 105ºF minimum inlet water temperature
  • Brass headers with copper finned tube heat exchanger. Glass-lined, cast-iron headers and cupro-nickel tubes available as options. AB 1953 compliant.
  • VERSA IC® control package with LCD display
  • Status display lights
  • Cascade control of up to 8 units, no external sequencer required.
  • Diagnostics center with history in English , not in codes
  • Modbus RTU BMS port (RS485)
  • 0-10 VDC BMS Interface (set point or direct drive)
  • Ducted combustion air capable. TruSeal® CSA-Certified direct-vent available.
  • Models 992C-2002C certified to SCAQMD Rule 1146.2. Meets all Low NOx regulations.
  • All models except 2002C available for natural gas and propane. Model 2002C available for natural gas only.
  • Optional patented FlexGas system allows the unit to be plumbed for natural gas and propane. Switch operation from one fuel to the other with the turn of a key, without shutting down the unit.


The Hi-Delta SureRack™ vertical stacking system allows you to double your heating capacity without doubling the overall footprint.  The easy to assemble SureRack system comes disassembled for easy transportation and mobility at the jobsite.  The location of the vent connection on the Hi-Delta is modular to allow the boilers to be stacked vertically with no offset.  The powder coated, heavy duty construction is ideal for indoor or outdoor installations.

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